Home / 1,040,189.04-1,560,290.04-320,521.86

Finding the Fourth Proportional to 1,040,189.04, 1,560,290.04 and 320,521.86

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Solution

The fourth proportional to 1,040,189.04, 1,560,290.04 and 320,521.86 is: 480,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,189.04 : 1,560,290.04 = 320,521.86 : x
  2. Step 2: Convert to fraction form
    1,040,189.04/1,560,290.04 = 320,521.86/x
  3. Step 3: Cross multiply
    1,040,189.04x = 1,560,290.04 × 320,521.86
  4. Step 4: Simplify right side
    1,040,189.04x = 500,107,065,760.27
  5. Step 5: Solve for x
    x = 500,107,065,760.27/1,040,189.04
  6. Step 6: Final answer
    x = 480,784.79

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.